Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average sea temperature in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
Geelong's shift into December sets the average high-temperature at a warm 23.1°C (73.6°F), a figure that deviates only slightly from November's 21.1°C (70°F). December is noted for a mean low-temperature of 12.6°C (54.7°F).Humidity
In December, the average relative humidity in Geelong, Australia, is 67%.Rainfall
In Geelong, in December, it is raining for 11.2 days, with typically 34mm (1.34") of accumulated precipitation. In Geelong, during the entire year, the rain falls for 153 days and collects up to 377mm (14.84") of precipitation.Sea temperature
In December, the average sea temperature in Geelong is 16.8°C (62.2°F).Note: Most people find swimming in 16.8°C (62.2°F) to be not enjoyable. The control of one's breathing becomes more challenging as the water temperature drops below 21°C (69.8°F).
Daylight
With an average of 14h and 48min of daylight, December has the longest days of the year in Geelong.On the first day of December, sunrise is at 5:53 am and sunset at 8:30 pm. On the last day of the month, sunrise is at 6:02 am and sunset at 8:48 pm AEDT.
Sunshine
With an average of 9.7h of sunshine, December has the most sunshine of the year.UV index
The month with the highest UV index in Geelong is December, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In December, the maximum UV index of 6 suggests this advice:
Persist with precautions and heed sun safety advice. Prevention of sunburn is compulsory. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
Frequently asked questions
What are December temperatures in Geelong?
What is the average humidity in December in Geelong?
How much does it rain in Geelong in December?
How cold is the water in December in Geelong?
When are the longest days in Geelong?
How many hours of daylight does Geelong have in December?
When are sunrise and sunset in December in Geelong?
What month has the most sunshine in Geelong?
How many hours of sunshine does Geelong have in December?
When is the highest UV index in Geelong?
How high is the UV index in December in Geelong?
Average temperature in December
Geelong, Australia
- Average high temperature in December: 23.1°C
The warmest month (with the highest average high temperature) is January (25.1°C).
The month with the lowest average high temperature is July (13.1°C).
- Average low temperature in December: 12.6°C
The month with the highest average low temperature is February (15.1°C).
The coldest month (with the lowest average low temperature) is August (7°C).
Average pressure in December
Geelong, Australia
- Average pressure in December: 1012.8mbar
The month with the highest atmospheric pressure is June (1021.1mbar).
The month with the lowest atmospheric pressure is January (1012.6mbar).
Average wind speed in December
Geelong, Australia
- Average wind speed in December: 11.7km/h
The windiest month (with the highest average wind speed) is August (14.9km/h).
The calmest month (with the lowest average wind speed) is April (11.2km/h).
Average humidity in December
Geelong, Australia
- Average humidity in December: 67%
The month with the highest relative humidity is June (80%).
The month with the lowest relative humidity is January (64%).
Average rainfall in December
Geelong, Australia
- Average rainfall in December: 34mm
The wettest month (with the highest rainfall) is February (40mm).
The driest month (with the least rainfall) is March (25mm).
Average rainfall days in December
Geelong, Australia
- Average rainfall days in December: 11.2 days
The month with the highest number of rainy days is July (14.6 days).
The month with the least rainy days is January (9.7 days).
Average sea temperature in December
Geelong, Australia
- Average sea temperature in December: 16.8°C
The best month for swimming (with the highest average sea temperature) is February (18.3°C).
The coldest months (with the lowest average sea temperature) are August and September (13.8°C).
Average daylight in December /
Average sunshine in December
Geelong, Australia
- Average daylight in December: 14h and 5min
The month with the longest days is December (Average daylight: 14h and 48min).
The month with the shortest days is June (Average daylight: 9h and 36min).
- Average sunshine in December: 9h and 4min
The month with the most sunshine is December (Average sunshine: 9h and 42min).
The month with the least sunshine is August (Average sunshine: 6h and 42min).
Average sunshine days in December
Geelong, Australia
- Average sunshine days in December: 16.5 days
The month with the most sunshine days is January (16.9 days).
The month with the least sunshine days is September (12.1 days).
Average UV index in December
Geelong, Australia
- Average UV index in December: 6
The month with the highest UV index is December (UV index 6).
The months with the lowest UV index are June, July and August (UV index 3).
Average cloud cover in December
Geelong, Australia
- Average cloud cover in December: 33
The months with the most cloud cover are May and August (Cloud cover 45).
The month with the least cloud cover is January (Cloud cover 31).
Average visibility in December
Geelong, Australia
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, June and December (10km).
The months with the lowest visibility are April, May, July, August, September, October and November (9km).
Geelong, Australia
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